diff --git a/lib_acl/include/net/acl_listen.h b/lib_acl/include/net/acl_listen.h
index b02235e76..daa1f6fbb 100644
--- a/lib_acl/include/net/acl_listen.h
+++ b/lib_acl/include/net/acl_listen.h
@@ -118,7 +118,7 @@ ACL_API int acl_fifo_listen(const char *path, int permissions, int mode);
 #if defined(_WIN32) || defined(_WIN64)
 typedef SOCKET (__stdcall *acl_accept_fn)(SOCKET, struct sockaddr*, socklen_t*);
 #else
-typedef int (acl_accept_fn)(int, struct sockaddr*, socklen_t*);
+typedef int (*acl_accept_fn)(int, struct sockaddr*, socklen_t*);
 #endif
 
 ACL_API void acl_set_accept(acl_accept_fn fn);
diff --git a/lib_acl/src/stdlib/iostuff/acl_read_wait.c b/lib_acl/src/stdlib/iostuff/acl_read_wait.c
index 1ce4811fe..7dc7ec7dd 100644
--- a/lib_acl/src/stdlib/iostuff/acl_read_wait.c
+++ b/lib_acl/src/stdlib/iostuff/acl_read_wait.c
@@ -251,7 +251,7 @@ static acl_poll_fn __sys_poll = poll;
 
 void acl_set_poll(acl_poll_fn fn)
 {
-	__sys_poll == fn;
+	__sys_poll = fn;
 }
 
 int acl_read_poll_wait(ACL_SOCKET fd, int delay)
diff --git a/lib_fiber/c/src/hook/select.c b/lib_fiber/c/src/hook/select.c
index 5a3d14c9f..b2427f90e 100644
--- a/lib_fiber/c/src/hook/select.c
+++ b/lib_fiber/c/src/hook/select.c
@@ -116,7 +116,7 @@ static struct pollfd *pfds_create(int *nfds, fd_set *readfds,
 	int fd;
 	struct pollfd *fds;
 
-	fds = (struct pollfd *) calloc(*nfds + , sizeof(struct pollfd));
+	fds = (struct pollfd *) calloc(*nfds + 1, sizeof(struct pollfd));
 
 	for (fd = 0; fd < *nfds; fd++) {
 		if (readfds && FD_ISSET(fd, readfds)) {